Datasheet
DS_1x66B_001 73M1866B/73M1966B Data Sheet
Rev. 1.6 3
8.5 Transmit and Receive Levels ................................................................................................ 48
8.5.1 A-Law........................................................................................................................ 48
8.5.2 μ-Law ........................................................................................................................ 48
8.5.3 Transmit and Receive Level Control .......................................................................... 48
8.6 Transmit Path Signal Processing ........................................................................................... 49
8.6.1 General Description ................................................................................................... 49
8.6.2 Total Transmit Path Response................................................................................... 49
8.6.3 73M1x66B Transmit Spectrum................................................................................... 50
8.7 Receive Path Signal Processing ............................................................................................ 50
8.7.1 General Description ................................................................................................... 50
8.7.2 Total Receive Path Response.................................................................................... 51
8.7.3 Receiver DC Offset Subtraction ................................................................................. 51
8.8 PCM Control Functions ......................................................................................................... 52
8.8.1 Transmit and Receive Level Control .......................................................................... 57
8.8.2 Time Slot Assignment Example ................................................................................. 59
9 Barrier Information ...................................................................................................................... 60
9.1 Isolation Barrier ..................................................................................................................... 60
9.2 Barrier Powered Options ....................................................................................................... 60
9.2.1 Barrier Powered Operation ........................................................................................ 60
9.2.2 Line Powered Operation ............................................................................................ 60
9.3 Synchronization of the Barrier ............................................................................................... 60
9.4 Auto-Poll ............................................................................................................................... 61
9.5 Barrier Control Functions ...................................................................................................... 61
9.6 Line-Side Device Operating Modes ....................................................................................... 63
9.7 Fail-Safe Operation of Line-Side Device ................................................................................ 63
10 Configurable Direct Access Arrangement (DAA) ....................................................................... 64
10.1 Pulse Dialing ......................................................................................................................... 64
10.2 DC Termination ..................................................................................................................... 64
10.3 AC Termination ..................................................................................................................... 66
10.4 Billing Tone Rejection ........................................................................................................... 67
10.5 Trans-Hybrid Cancellation ..................................................................................................... 68
10.6 Direct Access Arrangement Control Functions ....................................................................... 68
10.7 International Register Settings Table for DC and AC Terminations ........................................ 72
11 Line Sensing and Status ............................................................................................................. 73
11.1 Auxiliary A/D Converter ......................................................................................................... 73
11.2 Ring Detection ...................................................................................................................... 73
11.3 Line In Use Detection (LIU) ................................................................................................... 73
11.4 Parallel Pick Up (PPU) .......................................................................................................... 73
11.5 Polarity Reversal Detection ................................................................................................... 73
11.6 Off-hook Detection of Caller ID Type II .................................................................................. 73
11.7 Voltage and Current Detection .............................................................................................. 74
11.8 Under Voltage Detection (UVD) ............................................................................................. 74
11.9 Over Voltage Detection (OVD) .............................................................................................. 74
11.10 AC Signal Overload Detection ............................................................................................. 74
11.11 Over Current Detection (OID) .............................................................................................. 74
11.12 Line Sensing Control Functions........................................................................................... 75
12 Loopback and Testing Modes ..................................................................................................... 78
13 Performance ................................................................................................................................ 80
13.1 Transmit................................................................................................................................ 80
13.2 Receive................................................................................................................................. 82
14 Package Layout ........................................................................................................................... 85
15 Ordering Information ................................................................................................................... 87
16 Contact Information ..................................................................................................................... 87
Revision History .................................................................................................................................. 88